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Filip Sadlo, Tim Weyrich, Ronny Peikert
In this project we develop a purely point-based content creation pipeline for 3D objects. The acquisition
stage consists of a structured light scanner built from custom hardware. The cleaning stage is implemented
as a part of the PointShop3D system. The visualization
stage includes a plug-in for web browsers that allows to make the resulting models available in the WWW.
The scanner consists of a static video projector that projects structured light codes into
the scene, a computer-controlled turntable that rotates the scene to different views and a static camera
which acquires the light codes inside each view. Using the calibrated setup, 3D geometry and associated
texture can be reconstructed from the captured images by triangulating the respective camera ray with the
corresponding projector ray that illuminated the surface element. For texture reconstruction, the projector
is used as a calibrated light source. Even specular texture characteristics can be reconstructed per surface
point by utilizing the different views and illumination directions emanating from rotation by the turntable.
Due to the typically sparse reflectance sampling, only simple BRDF's conforming to the Phong reflectance
model are fitted.
- F. Sadlo, T. Weyrich, R. Peikert, M. Gross, A Practical Structured Light Acquisition System for Point-Based Geometry and Texture, Proceedings of the Eurographics Symposium on Point-Based Graphics '05, p. 89-98 (Stony Brook, USA, June 21-22)
[Abstract]
[BibTeX]
[PDF]
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